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Home › Buick › 2018 › LaCrosse Base › Repair and Diagnosis › Transmission › Automatic Trans › Electronic Transmission Range Select › Diagnostic Information and Procedures › DTC C1280 › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON/Vehicle in Service Mode.
  2. Check for updated software in K17 Electronic Brake Control Module.
    • If software is not current 

      Perform the programming  procedure for the K17 Electronic Brake Control Module.

    • Go to next step: If software is up to date 
  3. Replace the K17 Electronic Brake Control Module.
  4. Verify DTC C1280 is not set.
    • If DTC C1280 is set 

      Replace the K38 Chassis Control Module

    • Go to next step: If DTC C1280 is not set 
  5. All OK.
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